Temperature-sensitive trigger mechanism for fire extinguishing device and fire extinguishing device

Abstract

The utility model relates to fire extinguishing device technical field especially temperature sensing trigger mechanism and fire extinguishing device, temperature sensing trigger mechanism includes: the slide seat, is equipped with the slide in it, sliding assembly includes the sliding block, and the sliding block is movable and located in the slide, limiting component, it includes sleeve and limiting piece, sleeve links with the slide seat and communicates with the slide, limiting piece is located in the sleeve and is limited together with the sliding block, temperature sensing component, it includes abutting piece and heat collecting piece, one end of limiting piece is limited together with the sliding block, the other end is directly connected or indirectly connected together through abutting piece with the sleeve, and abutting piece provides the abutting action to limiting piece, heat collecting piece is used for gathering environmental heat and transmits environmental heat to abutting piece, the utility model discloses can realize the automatic response to the fire and timely trigger fire extinguishing, effectively guarantee the life and property safety of user.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a temperature-sensing triggering mechanism and a fire extinguishing device. Background Technology

[0002] Commonly used fire extinguishing devices include fire extinguishers, fire blankets, and fire balls, which can achieve good fire extinguishing effects in the event of a fire. However, these devices require manual operation by the user and cannot automatically extinguish a fire when no one is present.

[0003] Among related technologies, a fixed temperature-sensing fire extinguishing device has emerged, which can automatically extinguish fires when they occur. However, the current automatic temperature-sensing fire extinguishing devices have low sensitivity in triggering fire extinguishing and poor fire extinguishing effect. Utility Model Content

[0004] To overcome the problems existing in related technologies, the first aspect of this utility model proposes a temperature-sensing triggering mechanism for a fire extinguishing device, the temperature-sensing triggering mechanism comprising:

[0005] A sliding block, which has a sliding track inside;

[0006] A sliding assembly, comprising a slider movably disposed within the slide rail;

[0007] A limiting component includes a sleeve and a limiting member. The sleeve is connected to the slide block and communicates with the slide rail. The limiting member is disposed inside the sleeve and cooperates with the slider for limiting.

[0008] A temperature sensing component includes an abutment and a heat collector. One end of the limiting member is engaged with the slider for limiting, and the other end is directly or indirectly connected to the sleeve through the abutment. The abutment provides abutment to the limiting member. The heat collector is used to collect ambient heat and transfer it to the abutment.

[0009] When the temperature of the abutting member is lower than the set temperature, the abutting member provides abutting action for the limiting member. Under the abutting action provided by the abutting member, the limiting member is connected to the slider and limits the slider to a preset position in the slide rail. The fire extinguishing device is in a non-working state.

[0010] When the temperature of the contacting member reaches the set temperature, the contacting member releases its contacting effect on the limiting member, the limiting member separates from the slider, the slider moves along the slide rail, and the fire extinguishing device enters the working state.

[0011] In some embodiments, the sleeve includes a first end and a second end along its axial direction. The first end is connected to the side of the slide block. The side of the slide block is provided with a limiting channel at a position corresponding to the sleeve. The limiting channel communicates the slide rail with the interior of the sleeve. The second end is provided with a mounting hole. The abutment is disposed in the mounting hole. The heat collector is disposed at the second end and connected to the abutment. The limiting member includes a limiting rod. The slider is provided with a connecting structure.

[0012] When the fire extinguishing device is not in operation, one end of the limiting rod extends into the slide through the limiting channel and cooperates with the connecting structure to limit the slider to the preset position, and the other end of the limiting rod abuts against the abutting member;

[0013] When the fire extinguishing device is in working condition, the abutting member releases its abutting action on the limiting rod, and the limiting rod separates from the connecting structure.

[0014] In some embodiments, the abutting member includes a mounting cylinder and a hot-melt alloy column and an abutting column disposed inside the mounting cylinder. The abutting column is located between the hot-melt alloy column and the limiting rod. The mounting cylinder is disposed inside the mounting hole and is internally disposed through the cylinder along its axial direction. The heat collection member is disposed outside the mounting cylinder at one end near the hot-melt alloy column and is connected to the hot-melt alloy column.

[0015] When the temperature of the hot-melt alloy column is lower than the set temperature, the hot-melt alloy column and the abutting column together provide abutting action for the limiting rod, and the fire extinguishing device is in a non-working state.

[0016] When the temperature of the hot-melt alloy column reaches the set temperature, the hot-melt alloy column melts and flows out of the mounting cylinder. The hot-melt alloy column releases its abutment effect on the limiting rod from the abutment column, and the fire extinguishing device enters the working state.

[0017] In some embodiments, the slide has a fixed seat on its side, the limiting channel is formed in the fixed seat, and the first end of the sleeve is connected to the fixed seat;

[0018] The limiting assembly further includes a stop and a first spring. The stop is disposed on the limiting rod, and the first spring is sleeved on the limiting rod. One end of the first spring is connected to the stop and the other end is connected to the fixed seat.

[0019] When the fire extinguishing device is not in operation, the first spring is in a compressed state.

[0020] In some embodiments, the slide rail includes a first slide rail segment and a second slide rail segment disposed along the sliding direction of the slider, the limiting channel is connected to the first slide rail segment, the first slide rail segment is connected to the second slide rail segment, and the cross-sectional dimension of the first slide rail segment is smaller than the cross-sectional dimension of the second slide rail segment so that a limiting step is formed between the first slide rail segment and the second slide rail segment;

[0021] The slider includes a first slider part and a second slider part connected to each other. The first slider part is movably disposed in the first slide section, and the second slider part is movably disposed in the second slide section. The cross-sectional area of ​​the second slider part is larger than the cross-sectional area of ​​the first slide section. A limiting boss is provided at the end of the second slider part away from the first slide section.

[0022] The sliding assembly further includes a second spring member, which is sleeved on the second slider portion, and one end of the second spring member is connected to the limiting step, and the other end is connected to the limiting boss.

[0023] When the slider is in the limited position, the second spring is in the compressed state, and the second slider part abuts against the limited step.

[0024] In some embodiments, the heat collection element includes a heat collection plate, the end face of which is connected to the abutment member.

[0025] In some embodiments, the heat collection element includes a plurality of heat collection plates arranged along the axial direction of the sleeve, and the end face of the heat collection plate near the sleeve is in contact with the abutment member, and adjacent heat collection plates are connected, wherein the size of the heat collection plate gradually decreases along the direction away from the sleeve.

[0026] In some embodiments, the heat collection plate has multiple vent holes, wherein:

[0027] The density of vent holes on the end face of the heat collector plate is greater the further away from the abutment, and / or the total area of ​​vent holes on the end face of the heat collector plate is greater the further away from the abutment.

[0028] The second aspect of this utility model also proposes a fire extinguishing device, which includes the temperature-sensing triggering mechanism proposed in the first aspect of this utility model.

[0029] In some embodiments, the fire extinguishing device further includes:

[0030] The housing contains fire extinguishing agent, the temperature-sensing triggering mechanism is located on the outside of the housing, and the slide is connected to the inside of the housing;

[0031] A spraying assembly is disposed on the housing and located outside the housing, through which the fire extinguishing agent inside the housing can be sprayed out;

[0032] A striking pin assembly is disposed within the slide rail and fixedly connected to the slider; the striking pin assembly includes a striking pin.

[0033] A connecting assembly includes a connecting seat connected to one end of the slide near the firing pin assembly, the connecting seat having a connecting seat cavity that communicates with both the slide and the housing;

[0034] A gas cylinder containing propellant is located in the connecting seat cavity, and the outlet end of the gas cylinder is sealed and faces the firing pin.

[0035] When the fire extinguishing device is in working condition, the abutting member releases its abutting action against the limiting member, the limiting member separates from the slider, the slider moves and drives the firing pin to pierce the outlet end of the gas storage cylinder, the propellant in the gas storage cylinder is discharged from the outlet end and enters the housing, and the fire extinguishing agent in the housing is sprayed out by the spraying assembly under the action of air pressure.

[0036] The technical solution of this utility model can include the following beneficial effects: The temperature-sensing triggering mechanism of this utility model can realize automatic sensing of fire and timely triggering of fire extinguishing. When a fire occurs, it can puncture the gas cylinder in time and automatically extinguish the fire under the action of the propellant released by the gas cylinder. The temperature sensing sensitivity is high, which can effectively ensure the safety of users' lives and property.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0039] Figure 1 This is a cross-sectional view of a temperature-sensing trigger mechanism according to an exemplary embodiment.

[0040] Figure 2 yes Figure 1 Enlarged view of section B in the middle.

[0041] Figure 3 This is a cross-sectional view of a temperature-sensing trigger mechanism according to another exemplary embodiment.

[0042] Figure 4 This is a cross-sectional view of a slide according to an exemplary embodiment.

[0043] Figure 5 This is a cross-sectional view of a sleeve according to an exemplary embodiment.

[0044] Figure 6 This is a front view of a fire extinguishing device shown according to an exemplary embodiment.

[0045] Figure 7 This is a left view of a fire extinguishing device illustrated according to an exemplary embodiment.

[0046] Figure 8 This is a cross-sectional view along line AA in Figure 7 with the protective sleeve removed.

[0047] Figure 9 yes Figure 8 Enlarged view of point A in the middle.

[0048] Figure 10 This is a cross-sectional view showing the temperature-sensing trigger mechanism, the connecting component, and the striker assembly according to an exemplary embodiment.

[0049] Figure 11 yes Figure 10 Enlarged view of point C.

[0050] Figure 12 yes Figure 7 A cross-sectional view of the BB section with the nozzle cover removed.

[0051] The attached figures are labeled as follows:

[0052] 1. Housing; 11. Housing cavity; 2. Injection assembly; 3. Gas storage cylinder; 31. Outlet end; 4. Connecting assembly; 41. Connecting seat; 411. First connecting part; 4111. First vent hole; 4112. Connecting seat channel; 412. Second connecting part; 4121. Connecting seat cavity; 413. Second seal; 414. Third seal; 5. Strike pin assembly; 51. Strike pin seat; 52. Strike pin; 6. Temperature sensing triggering mechanism; 61. Slide; 611. Slide rail; 6111. First slide rail section; 6112. Second slide rail section; 612. Third end; 613. Fourth end; 614. Second vent hole; 615. Fixing seat; 6151. Limiting channel; 6 16. Limiting step; 62. Sliding assembly; 621. Slider; 6211. First slider part; 6212. Second slider part; 6213. Limiting boss; 622. Second spring part; 63. Limiting assembly; 631. Sleeve; 6311. First end; 6312. Second end; 6313. Mounting hole; 632. Limiting member; 633. Stop part; 634. First spring part; 64. Temperature sensing assembly; 641. Abutting member; 6411. Mounting cylinder; 6412. Hot melt alloy column; 6413. Abutting column; 642. Heat collector; 6421. First heat collector plate; 6422. Second heat collector plate; 65. First sealing member; 7. Motion sensing mechanism. Detailed Implementation

[0053] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0054] The following describes this embodiment in detail with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and examples can be combined with each other.

[0055] According to an exemplary embodiment, such as Figures 1-5 As shown, this embodiment proposes a temperature-sensing triggering mechanism 6 for a fire extinguishing device. The temperature-sensing triggering mechanism 6 includes a slide 61, a sliding assembly 62, a limiting assembly 63, and a temperature-sensing assembly 64. The slide 61 is disposed on the side wall or bottom wall of the housing 1. Exemplarily, the slide 61 has a long strip structure and is arranged along the length direction of the housing 1. The slide 61 has a slide rail 611, which extends along the length direction of the slide 61. The sliding assembly 62 includes a slider 621, which is movably disposed within the slide rail 611. The inner wall surface of the slide rail 611 is smoothly disposed to reduce the friction of the slider 621 during movement. The limiting assembly 63 includes a sleeve 631 and a limiting member 632. The sleeve 631 has a long cylindrical structure, and the limiting member 632 is disposed within the sleeve 631 and is limited and engaged with the slider 621.

[0056] When the fire extinguishing device is not in operation, the limiting member 632 is connected to the slider 621, and the limiting member 632 limits the slider 621 to a preset position within the slide rail 611. When the fire extinguishing device is in operation, the limiting member 632 is separated from the slider 621, and the limiting member 632 loses its limiting effect on the slider 621, allowing the slider 621 to move along the slide rail 611.

[0057] The temperature sensing component 64 includes an abutment 641 and a heat collector 642. The abutment 641 is disposed on the sleeve 631 and is used to abut against the limiting member 632. One end of the limiting member 632 is engaged with the slider (621) for limiting, and the other end is directly or indirectly connected to the sleeve (631) through the abutment (641). The abutment (641) abuts against the limiting member (632). The heat collector 642 is disposed outside the sleeve 631 and connected to the abutment 641. The heat collector 642 is used to collect ambient heat and transfer ambient heat to the abutment 641.

[0058] When the temperature of the contact member 641 is lower than the set temperature, it indicates that there may be no fire. At this time, the contact member 641 provides a contacting action for the limiting member 632. Under the contacting action provided by the contact member 641, the limiting member 632 connects to the slider 621 and limits the slider 621 to a preset position in the slide rail 611. At this time, the fire extinguishing device is in a non-working state. When the temperature of the contact member 641 reaches the set temperature, it indicates that there is a high probability of a fire. The contact member 641 releases its contacting action on the limiting member 632, the limiting member 632 separates from the slider 621, and the slider 621 moves along the slide rail 611. The striking pin 52 connected to the slider 621 will move under the action of the slider 621 and puncture the gas cylinder 3. The propellant in the gas cylinder 3 will enter the housing 1, increasing the pressure inside the housing 1. The extinguishing agent in the housing 1 will be sprayed out from the housing 1 under pressure to extinguish the fire. At this time, the fire extinguishing device enters the working state.

[0059] In some embodiments, the sleeve 631 includes a first end 6311 and a second end 6312 along its axial direction, with the first end 6311 connected to the side of the slide 61. Preferably, the sleeve 631 is connected to the lower side of the slide 61, and when the fire extinguishing device is installed at the top of the indoor space, the slide 61 is positioned in the direction of gravity. The connection method between the slide 61 and the sleeve 631 is not limited; it can also be achieved by snap-fit, plug-in, connector connection, welding, or bonding.

[0060] The first end 6311 is connected to the side of the slide block 61. A limiting channel 6151 is provided on the side of the slide block 61 at a position corresponding to the sleeve 631, connecting the slide block 611 to the inside of the sleeve 631. The second end 6312 has a mounting hole 6313, with an abutment 641 located within it. A heat collector 642 is located at the second end 6312 and connected to the abutment 641. The limiting member 632 includes a limiting rod, and the slider 621 has a connecting structure. When the fire extinguishing device is not in operation, one end of the limiting rod extends into the slide block 611 through the limiting channel 6151 and engages with the connecting structure to limit the slider 621 to a preset position. The other end of the limiting rod abuts against the abutment 641. When the fire extinguishing device is in operation, the abutment 641 releases its contact with the limiting rod, separating the limiting rod from the connecting structure. The abutment 641 may release its abutment action against the limit rod by, for example, removing at least a portion of the structure of the abutment 641 from the mounting hole 6313 or by disengaging the abutment 641 entirely from the mounting hole 6313.

[0061] This embodiment does not specifically limit the structure of the connecting structure of the slider 621. In one example, the connecting structure is a blind hole or through hole provided on the slider 621, and the blind hole or through hole is arranged opposite to the limiting rod. When the fire extinguishing device is in a non-operating state, the end of the limiting rod away from the abutment member 641 is inserted into the blind hole or through hole to limit the slider 621. When the fire extinguishing device is in an operating state, the abutment member 641 releases its abutment effect on the limiting rod, and the limiting rod disengages from the blind hole or through hole under the action of gravity, thereby separating from the slider 621. The limiting rod loses its abutment effect on the slider 621, allowing the slider 621 to move along the slide rail 611.

[0062] In other possible implementations, the connecting structure can also be a protrusion or rib provided on the slider 621, with the protrusion or rib corresponding to the limiting rod. When the fire extinguishing device is in a non-operating state, the end of the limiting rod away from the abutment 641 cooperates with the protrusion or rib to limit the slider 621. When the fire extinguishing device is in an operating state, the abutment 641 releases its abutment on the limiting rod, and the limiting rod separates from the protrusion or rib under the action of gravity. The limiting rod loses its abutment on the slider 621, allowing the slider 621 to move along the slide rail 611.

[0063] The abutment member 641 includes an installation cylinder 6411 and a thermoplastic alloy column 6412 and an abutment column 6413 disposed within the installation cylinder 6411. The installation cylinder 6411 is located within the installation hole 6313, and the abutment column 6413 is positioned between the thermoplastic alloy column 6412 and the limiting rod. When the temperature is below the set temperature, the thermoplastic alloy column 6412 possesses a certain strength and hardness, enabling it to work with the abutment column 6413 to provide support for the limiting rod, and the fire extinguishing device is in a non-operating state. When the temperature reaches the set temperature, the thermoplastic alloy column 6412 will melt, causing the support to collapse. The thermoplastic alloy column 6412 and the abutment column 6413 will no longer be able to support and position the limiting rod, the abutment member 641's abutment action against the limiting rod will be released, and the fire extinguishing device will enter the operating state. The set temperature is the melting point of the thermoplastic alloy.

[0064] Furthermore, the interior of the mounting cylinder 6411 is axially oriented, allowing the molten alloy column 6412 to flow out from the end of the mounting cylinder 6411 away from the limiting rod when it melts. The heat collector 642 is located on the outside of the mounting cylinder 6411 near the molten alloy column 6412 and connected to it. The heat collector 642 collects ambient heat and directly transfers it to the molten alloy column 6412, enabling the molten alloy column 6412 to sense changes in ambient temperature in a timely manner. When a fire occurs and the ambient temperature rises to the melting point of the molten alloy column 6412, it melts, thereby releasing the abutment of the limiting rod in a timely manner. As the molten liquid of the molten alloy column 6412 flows out of the mounting cylinder 6411, the heat collector will also separate from the sleeve 631.

[0065] The dimensions of both the hot-melt alloy column 6412 and the abutment column 6413 are larger than the opening size of the mounting cylinder 6411 near the heat collector 642. This is to prevent the hot-melt alloy column 6412 and the abutment column 6413 from detaching from the mounting cylinder 6411 when the ambient temperature is below the melting point of the hot-melt alloy column 6412. The abutment column 6413 is also designed to prevent the limiting rod from falling out of the sleeve 631 after the hot-melt alloy column 6412 melts. The sleeve 631, the mounting cylinder 6411, and the abutment column 6413 are all made of high-temperature and corrosion-resistant materials, such as stainless steel.

[0066] In other possible implementations, the abutment 641 may also consist only of a hot-melt alloy column 6412, which is located within the mounting hole 6313. The working principle of the fire extinguishing device is similar under this structure, and will not be described in detail here.

[0067] In some embodiments, a fixing seat 615 is provided on the side of the slide 61. The fixing seat 615 can be set independently of the slide 61 and connected to the slide 61 by means of snap-fit, plug-in, connector, adhesive or welding. The fixing seat 615 can also be integrally formed with the slide 61. For example, the fixing seat 615 is formed by a portion of the side wall of the slide 61 extending towards the sleeve 631.

[0068] A limiting channel 6151 is formed within the fixed base 615, and the first end 6311 of the sleeve 631 is connected to the fixed base 615. The sleeve 631 and the fixed base 615 can be connected by snap-fit, plug-in, connector connection, bonding, or welding. For example, the outer wall of the end of the fixed base 615 away from the slide 61 is provided with an external thread, and the inner wall of the first end 6311 of the sleeve 631 is provided with an internal thread. In the assembled state of the sleeve 631 and the fixed base 615, the end of the fixed base 615 away from the slide 61 extends into the sleeve 631 through the first end 6311 of the sleeve 631, and is threadedly connected to the sleeve 631 through the internal and external threads.

[0069] The limiting assembly 63 also includes a stop 633 and a first spring 634. The stop 633 is disposed on the limiting rod; for example, the stop 633 is a baffle located in the middle of the limiting rod. The first spring 634 is sleeved on the limiting rod, with one end connected to the stop 633 and the other end connected to the fixing seat 615. When the fire extinguishing device is in a non-operating state, the first spring 634 is in a compressed state under the abutment action of the abutment member 641 against the limiting rod.

[0070] When the fire extinguishing device is in operation, the abutment member 641 releases its abutment on the limiting rod. At this time, the first spring member 634 is released, and the elastic force of the first spring member 634 pushes the limiting rod away from the slider 621, thereby accelerating the separation of the limiting member 632 and the slider 621 and improving the reaction speed during fire extinguishing. At the same time, even if the connection structure between the limiting rod and the slider 621 becomes stuck due to prolonged engagement, it can still respond quickly, effectively ensuring the fire extinguishing effect. In addition, the first spring member 634 can also prevent the setting direction of the limiting rod from being limited to the direction of gravity. For example, when the setting direction of the limiting rod is along the moving direction of the slider 621, the effect of quickly separating the limiting rod and the slider 621 in the event of a fire can still be achieved.

[0071] In some embodiments, the slide 611 includes a first slide section 6111 and a second slide section 6112 disposed along the sliding direction of the slider 621. A limiting channel 6151 communicates with the first slide section 6111 and the second slide section 6112. The cross-sectional dimension of the first slide section 6111 is smaller than that of the second slide section 6112 so that a limiting step 616 is formed between the first slide section 6111 and the second slide section 6112. The slider 621 includes a first slider portion 6211 and a second slider portion 6212 connected together. The first slider portion 6211 is movably disposed on the first slide section 6111, and the second slider portion 6212 is movably disposed on the second slide section 6112. A connecting structure is disposed on the first slider portion 6211, and a second limiting boss 6213 is formed at the end of the second slider portion 6212 away from the first slide section 6111. The first slider part 6211 and the second slider part 6212 can be independent of each other and can be connected by snap-fit, plug-in, connector, welding or adhesive. The first slider part 6211 and the second slider part 6212 can also be an integrally formed structure.

[0072] The sliding assembly 62 also includes a second spring 622, which is sleeved on the second slider portion 6212. One end of the second spring 622 is connected to the limiting step 616, and the other end is connected to the second limiting boss 6213. When the fire extinguishing device is not in operation, the slider 621 is in a limited state where it is limited by the limiting member 632 to a preset position within the slide rail 611. That is, the first slider portion 6211 is limited within the first slide rail section 6111. At this time, the second spring 622 is in a compressed state, and the second slider portion 6212 abuts against the limiting step 616. In the event of a fire, the limiting member 632 separates from the slider 621. The elastic force of the second spring 622 after release drives the first slider portion 6211 and the second slider portion 6212 to move, thereby causing the firing pin 52 to puncture the outlet end 31 of the gas cylinder 3.

[0073] Preferably, the cross-section of the first slide section 6111 is adapted to the cross-section of the first slider part 6211, so that the first slider part 6211 can slide within the first slide section 6111 without deviating from its sliding trajectory. The cross-section of the second slide section 6112 is adapted to the cross-section of the limiting boss 6213, so that the limiting boss 6213 can move within the second slide section 6112 without deviating from its sliding trajectory. This ensures that in the event of a fire, the slider 621 can drive the firing pin 52 to accurately puncture the outlet end 31 of the gas cylinder 3, ensuring the fire extinguishing effect.

[0074] Preferably, the cross-sectional area of ​​the second slider portion 6212 is larger than the cross-sectional area of ​​the first slide section 6111. When the slider 621 is in the limited state of being limited by the limiting member 632 in the preset position within the slide 611, the second slider portion 6212 abuts against the limiting step 616, thereby preventing the slider 621 from detaching from the opening at the end of the slide block 61 away from the striking needle 52 due to the pushing effect of the propellant released by the gas cylinder 3 after the striking needle 52 punctures the gas cylinder 3.

[0075] In some embodiments, the heat collector 642 includes a heat collector plate, the end face of which is connected to the abutment member 641. The heat collector plate has multiple vent holes to significantly reduce the thermal resistance of the end face, allowing heat from the surface of the heat collector plate to concentrate on the abutment member 641, thus improving the heat transfer efficiency between the end face of the heat collector plate and the abutment member 641. The arrangement of the multiple heat dissipation vent holes on the end face of the heat collector plate is not limited; they can be evenly distributed or unevenly distributed.

[0076] In one example, the density of vent holes on the end face of the heat collector plate is greater the further away from the abutment member 641, and / or the total area of ​​vent holes on the end face of the heat collector plate is greater the further away from the abutment member 641. This is because the further away from the abutment member 641, the longer the heat transfer path to the abutment member 641, and the greater the thermal resistance. Therefore, the greater the density of vent holes and / or the greater the total area of ​​vent holes, the more conducive it is to the concentration of heat on the surface of the heat collector plate to the abutment member 641, further improving the heat transfer efficiency.

[0077] In one example, the heat collector 642 includes multiple heat collector plates arranged along the axial direction of the sleeve 631. The end face of the heat collector plate closest to the sleeve 631 is in contact with the abutment member 641. Adjacent heat collector plates are connected, and the dimensional relationship between the multiple heat collector plates is not limited. (Refer to...) Figure 2 The heat collector 642 includes a first heat collector 6421 and a second heat collector 6422. The first heat collector 6421 is connected to the hot melt alloy column 6412. The second heat collector 6422 is located on the side of the first heat collector 6421 away from the hot melt alloy column 6412, and the second heat collector 6422 is connected to the first heat collector 6421. The first heat collector and the second heat collector have the same size.

[0078] Preferably, among the multiple heat collection plates, the size of the heat collection plates gradually decreases along the direction away from the sleeve 631, in order to improve the heat transfer efficiency in the height direction and enhance the concentration of heat towards the contact member 641, thereby improving the heat transfer effect. For example, refer to... Figure 3 The heat collector 642 includes a first heat collector 6421 and a second heat collector 6422. The first heat collector 6421 is connected to the hot-melt alloy column 6412. The second heat collector 6422 is located on the side of the first heat collector 6421 away from the hot-melt alloy column 6412, and the second heat collector 6422 is connected to the first heat collector 6421. The size of the second heat collector 6422 is smaller than the size of the first heat collector 6421.

[0079] According to an exemplary embodiment, this embodiment also proposes a fire extinguishing device, which includes the temperature-sensing triggering mechanism 6 mentioned above.

[0080] In some implementations, such as Figures 6-10 As shown, the fire extinguishing device includes a housing 1, a spray assembly 2, a temperature-sensing triggering mechanism 6 as described above, a striking pin assembly 5, a connecting assembly 4, and a gas cylinder 3. Wherein:

[0081] The shell 1 has a cavity 11 inside, which stores fire extinguishing agent.

[0082] The spraying assembly 2 is disposed on the housing 1 and located outside the housing 1, and the fire extinguishing agent inside the housing 1 can be sprayed out through the spraying assembly 2;

[0083] The temperature-sensing triggering mechanism 6 is located on the outside of the housing 1, and the slide 611 is connected to the inside of the housing 1.

[0084] The striking pin assembly 5 is disposed within the slide rail 611 and fixedly connected to the slider 621. The striking pin assembly 5 includes a striking pin 52. Preferably, the striking pin assembly 5 also includes a striking pin seat 51, which is connected to the slider 621. The striking pin 52 is disposed in the striking pin seat 51 and fixedly connected to it. Exemplarily, the end of the striking pin 52 furthest from the gas cylinder 3 is inserted into the striking pin seat 51.

[0085] The connecting component 4 includes a connecting seat 41, which is connected to the end of the slide 61 near the impact pin assembly 5. The connecting seat 41 has a connecting seat cavity 4121, which is connected to the slide 611 and the housing 1.

[0086] The gas cylinder 3 contains a propellant. The gas cylinder 3 is located in the connecting seat cavity 4121, and the outlet end 31 of the gas cylinder 3 is sealed and faces the impact pin 52.

[0087] When the fire extinguishing device is not in operation, the limiting member 632 is connected to the slider 621 under the abutting action provided by the abutting member 641 and limits the slider 621 to a preset position in the slide rail 611.

[0088] When the fire extinguishing device is in working condition, the abutment member 641 releases its abutment effect on the limiting member 632, the limiting member 632 separates from the slider 621, the slider 621 moves and drives the firing pin 52 to puncture the outlet end 31 of the gas storage cylinder 3, the propellant in the gas storage cylinder 3 is discharged from the outlet end 31 and enters the shell cavity 11, and the fire extinguishing agent in the shell cavity 11 is sprayed out by the spraying assembly 2 under the action of air pressure.

[0089] This embodiment stores the propellant in the gas cylinder 3 and seals it when the fire extinguishing device is not in operation. This eliminates the need for pre-pressurization of the extinguishing agent within the casing 1, thus avoiding natural depressurization, reducing the hassle of inspection and replacement, extending service life, and ensuring fire extinguishing effectiveness. Furthermore, this embodiment utilizes a temperature-sensing triggering mechanism 6 to automatically detect and trigger fires. Upon the occurrence of a fire, the gas cylinder 3 is punctured in time, and the propellant released from the cylinder automatically extinguishes the fire, effectively ensuring the safety of users' lives and property.

[0090] In some implementations, such as Figure 9 As shown, an airflow passage is provided between the connecting seat 41, the slide 61 and the housing 1, and the airflow passage connects the connecting seat cavity 4121 and the housing cavity 11. When the gas storage cylinder 3 is discharging propellant, the propellant enters the airflow passage through the connecting seat cavity 4121 and then enters the housing 1 through the airflow passage to increase the gas pressure inside the housing 1.

[0091] In some implementations, such as Figure 4 , Figure 10 , Figure 11 As shown, the slide 61 includes a third end 612 near the firing pin 52, and the third end 612 is open. The connecting seat 41 is fixed to the third end 612. The connection method between the connecting seat 41 and the slide 61 is not limited; they can be connected and fixed by snap-fit, plug-in, connector connection, welding, or bonding. In one example, the connecting seat 41 includes a first connecting part 411 and a second connecting part 412 connected together. The first connecting part 411 extends into the slide rail 611 from the third end 612, and the second connecting part 412 is located outside the slide 61 and mates with the outer end face of the third end 612. Exemplarily, the first connecting part 411 and the slide 61 are fixedly connected by a threaded connection.

[0092] The connecting seat cavity 4121 is formed by the inward indentation of the end of the second connecting portion 412 away from the first connecting portion 411. In a preferred embodiment, the inner wall surface of the connecting seat cavity 4121 is a conical surface, and the curvature of the conical surface is adapted to the side of the gas storage cylinder 3 near the outlet end 31. When the gas storage cylinder 3 is disposed in the connecting seat cavity 4121, the inner wall surface of the connecting seat cavity 4121 can fit against the side wall of the gas storage cylinder 3, thereby improving the assembly reliability between the gas storage cylinder 3 and the connecting seat 41.

[0093] A first vent hole 4111 is formed in the first connecting part 411. A second vent hole 614 is provided at the position corresponding to the first vent hole 4111 on the slide 61. A third vent hole (not shown in the figure) is provided at the position corresponding to the second vent hole 614 on the housing 1. The first vent hole 4111, the second vent hole 614 and the third vent hole are connected in sequence to form an airflow passage. A connecting seat channel 4112 is also formed in the first connecting part 411. The first vent hole 4111 and the connecting seat cavity 4121 are both connected to the connecting seat channel 4112. The outlet end 31 of the gas storage bottle 3 faces the connecting seat channel 4112. At least a part of the structure of the striking pin 52 is housed in the connecting seat channel 4112, that is, at least the piercing end of the striking pin 52 is located in the connecting seat channel 4112. The connecting seat channel 4112 forms the moving channel of the striking pin 52, which effectively avoids the movement trajectory of the striking pin 52 from deviating during the movement process and ensures that the striking pin 52 can accurately pierce the outlet end 31 of the gas storage bottle 3.

[0094] Preferred, such as Figure 9 , Figure 11 As shown, a sealing element is fitted onto the slide 61, and the sealing element is located between the second vent 614 and the third vent. When the fire extinguishing device is not in operation, the sealing element closes the second vent 614, and the second vent 614 and the third vent are not connected. This effectively prevents external dust from blocking the passage between the second vent 614 and the third vent, thereby ensuring that the propellant in the gas cylinder 3 can smoothly enter the housing 1 through the first vent 4111, the second vent 614, and the third vent in the event of a fire, ensuring the fire extinguishing effect. When the fire extinguishing device is in operation, the sealing element opens the second vent 614 under the action of air pressure, and the second vent 614 and the third vent are connected. For example, a first sealing groove is provided on the outer wall of the slide 61 at the position corresponding to the second vent 614, and the sealing element is a first sealing element 65. The first sealing element 65 is sleeved on the outer wall of the slide 61 and embedded in the first sealing groove to achieve sealing of the second vent 614 in the non-working state.

[0095] In a preferred embodiment, such as Figure 11As shown, the first connecting part 411 and / or the second connecting part 412 are sealed to the slide 61. For example, the slide 611 has a second sealing groove at the position corresponding to the first connecting part 411, and the slide 61 has a third sealing groove at the position corresponding to the second connecting part 412. When the connecting seat 41 and the slide 61 are assembled, the second sealing member 413 is sleeved on the first connecting part 411 and embedded in the second sealing groove, and the third sealing member 414 is sleeved on the second connecting part 412 and embedded in the third sealing groove. The arrangement of the first sealing member 65 and the second sealing member 413 achieves a multi-level sealing effect between the slide 61 and the connecting seat 41.

[0096] In a preferred embodiment, the temperature-sensing triggering mechanism 6 further includes a protective sleeve, which is fitted over the outside of the sleeve 631. The heat collector 642 is located outside the protective sleeve, and the protective sleeve is used to protect the sleeve 631 and its internal components.

[0097] In some embodiments, the fire extinguishing device of this embodiment adds a motion sensing mechanism 7 to the above scheme. The motion sensing mechanism 7 is used to sense the movement of the slider 621 and issue an alarm message when the slider 621 moves. For example, Figure 3 and Figure 8 As shown, the slide 61 includes a fourth end 613 away from the striker 52, and the fourth end 613 is open. The motion sensing mechanism 7 is located at the fourth end 613 and connected to the slider 621. The motion sensing mechanism 7 can sense the movement of the slider 621 and issue an alarm message when it senses the movement of the slider 621.

[0098] In this embodiment, when the temperature-sensing trigger unit senses that the ambient temperature has reached the set temperature, it will release the abutment action on the limiting member 632. At this time, the slider 621 will move along the slide rail 611. After the motion sensing mechanism 7 senses the movement of the slider 621, it indicates that a fire is highly likely to occur in the environment where the fire extinguishing device is located. The motion sensing mechanism 7 also issues an alarm message when it senses the movement of the slider 621. The alarm message can be issued through an alarm connected to the motion sensing mechanism 7. The alarm can be installed in the user's home to warn the users. Alternatively, the alarm message can be issued through a mobile terminal connected to the motion sensing mechanism 7, so that the user can receive the alarm signal in time even when they are not at home. Alternatively, the alarm message can be issued through a fire protection system connected to the motion sensing mechanism 7, so that the fire department can receive the fire alarm in time. The alarm message includes the location information of the fire extinguishing device, so that firefighters can accurately locate the fire and extinguish it in time.

[0099] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure. Such variations or adaptations follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the foregoing claims.

[0100] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A temperature-sensing triggering mechanism for a fire extinguishing device, characterized in that, The temperature-sensing trigger mechanism includes: A sliding block, which has a sliding track inside; A sliding assembly, comprising a slider movably disposed within the slide rail; A limiting component includes a sleeve and a limiting member. The sleeve is connected to the slide block and communicates with the slide rail. The limiting member is disposed inside the sleeve and cooperates with the slider for limiting. A temperature sensing component includes an abutment and a heat collector. One end of the limiting member is engaged with the slider for limiting, and the other end is directly or indirectly connected to the sleeve through the abutment. The abutment provides abutment to the limiting member. The heat collector is used to collect ambient heat and transfer it to the abutment. When the temperature of the abutting member is lower than the set temperature, the abutting member provides abutting action for the limiting member. Under the abutting action provided by the abutting member, the limiting member is connected to the slider and limits the slider to a preset position in the slide rail. The fire extinguishing device is in a non-working state. When the temperature of the contacting member reaches the set temperature, the contacting member releases its contacting effect on the limiting member, the limiting member separates from the slider, the slider moves along the slide rail, and the fire extinguishing device enters the working state.

2. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 1, characterized in that, The sleeve includes a first end and a second end along its axial direction. The first end is connected to the side of the slide block. The side of the slide block is provided with a limiting channel at a position corresponding to the sleeve. The limiting channel connects the slide rail to the inside of the sleeve. The second end is provided with a mounting hole. The abutment is provided in the mounting hole. The heat collector is provided at the second end and connected to the abutment. The limiting member includes a limiting rod. The slider is provided with a connecting structure. When the fire extinguishing device is not in operation, one end of the limiting rod extends into the slide through the limiting channel and cooperates with the connecting structure to limit the slider to the preset position, and the other end of the limiting rod abuts against the abutting member; When the fire extinguishing device is in working condition, the abutting member releases its abutting action on the limiting rod, and the limiting rod separates from the connecting structure.

3. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 2, characterized in that, The abutting member includes an installation cylinder and a hot melt alloy column and an abutting column disposed inside the installation cylinder. The abutting column is located between the hot melt alloy column and the limiting rod. The installation cylinder is disposed inside the installation hole and is arranged through the interior of the installation cylinder along its axial direction. The heat collection member is disposed outside the installation cylinder at one end near the hot melt alloy column and is connected to the hot melt alloy column. When the temperature of the hot-melt alloy column is lower than the set temperature, the hot-melt alloy column and the abutting column together provide abutting action for the limiting rod, and the fire extinguishing device is in a non-working state. When the temperature of the hot-melt alloy column reaches the set temperature, the hot-melt alloy column releases its contact with the limiting rod, and the fire extinguishing device enters the working state.

4. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 2, characterized in that, The slide block is provided with a fixed seat on its side, the limiting channel is formed in the fixed seat, and the first end of the sleeve is connected to the fixed seat; The limiting assembly further includes a stop and a first spring. The stop is disposed on the limiting rod, and the first spring is sleeved on the limiting rod. One end of the first spring is connected to the stop and the other end is connected to the fixed seat. When the fire extinguishing device is not in operation, the first spring is in a compressed state.

5. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 2, characterized in that, The slide rail includes a first slide rail section and a second slide rail section arranged along the sliding direction of the slider. The limiting channel is connected to the first slide rail section, the first slide rail section is connected to the second slide rail section, and the cross-sectional dimension of the first slide rail section is smaller than the cross-sectional dimension of the second slide rail section so that a limiting step is formed between the first slide rail section and the second slide rail section. The slider includes a first slider part and a second slider part connected to each other. The first slider part is movably disposed in the first slide section, and the second slider part is movably disposed in the second slide section. The cross-sectional area of ​​the second slider part is larger than the cross-sectional area of ​​the first slide section. A limiting boss is provided at the end of the second slider part away from the first slide section. The sliding assembly further includes a second spring member, which is sleeved on the second slider portion, and one end of the second spring member is connected to the limiting step, and the other end is connected to the limiting boss. When the slider is in the limited position, the second spring is in the compressed state, and the second slider part abuts against the limited step.

6. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 2, characterized in that, The heat collection element includes a heat collection plate, and the end face of the heat collection plate is connected to the abutment member.

7. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 2, characterized in that, The heat collection element includes multiple heat collection plates, which are arranged along the axial direction of the sleeve. The end face of the heat collection plate closest to the sleeve is in contact with the abutment member, and adjacent heat collection plates are connected. The size of the heat collection plate gradually decreases along the direction away from the sleeve.

8. The temperature-sensing triggering mechanism for a fire extinguishing device according to claim 6 or 7, characterized in that, The heat collection plate has multiple ventilation holes, among which: The density of vent holes on the end face of the heat collector plate is greater the further away from the abutment, and / or the total area of ​​vent holes on the end face of the heat collector plate is greater the further away from the abutment.

9. A fire extinguishing device, characterized in that, The fire extinguishing device includes the temperature-sensing triggering mechanism as described in any one of claims 1-8.

10. The fire extinguishing device according to claim 9, characterized in that, The fire extinguishing device also includes: The housing contains fire extinguishing agent, the temperature-sensing triggering mechanism is located on the outside of the housing, and the slide is connected to the inside of the housing; A spraying assembly is disposed on the housing and located outside the housing, through which the extinguishing agent inside the housing can be sprayed out; A striking pin assembly is disposed within the slide rail and fixedly connected to the slider; the striking pin assembly includes a striking pin. A connecting assembly includes a connecting seat connected to one end of the slide near the firing pin assembly, the connecting seat having a connecting seat cavity that communicates with both the slide and the housing; A gas cylinder containing propellant is located in the connecting seat cavity, and the outlet end of the gas cylinder is sealed and faces the firing pin. When the fire extinguishing device is in working condition, the abutting member releases its abutting action against the limiting member, the limiting member separates from the slider, the slider moves and drives the firing pin to pierce the outlet end of the gas storage cylinder, the propellant in the gas storage cylinder is discharged from the outlet end and enters the housing, and the fire extinguishing agent in the housing is sprayed out by the spraying assembly under the action of air pressure.

Images